ABSTRACT

The current research is conducted to assess the effects of Nano-Al₂O₃-particles on the storage stability and high-temperature performance of polymer-modified bitumen (PMB). Nano-Al₂O₃-particles were mixed with PMB in five different contents. The high-temperature performance of obtained bitumen was evaluated by using the storage stability, viscosity and MSCR tests. The results of tests showed that Nano-Al₂O₃-particles improved the storage stability of PMB. Addition of Nano-Al₂O₃-particles into PMB was accompanied by the increase of viscosity. Based on the results of MSCR test, Nano-Al₂O₃-particles remarkably improved high-temperature properties of SBS polymer-modified bitumen. In addition, it was found that incorporation of 1.2% Nano-Al₂O₃-particles into PMB showed a good potential to improve the high-temperature performance of PMB.

摘要

目前的研究旨在评估纳米Al ₂ O ₃颗粒对聚合物改性沥青(PMB) 的储存稳定性和高温性能的影响。纳米Al ₂ O ₃颗粒与五种不同含量的PMB混合。通过使用储存稳定性、粘度和 MSCR 测试来评估所得沥青的高温性能。测试结果表明，纳米Al ₂ O ₃颗粒提高了PMB的储存稳定性。在PMB中加入纳米Al ₂ O ₃颗粒伴随着粘度的增加。根据 MSCR 测试结果，Nano-Al ₂ O ₃-颗粒显着改善了 SBS 聚合物改性沥青的高温性能。此外，发现将1.2% 纳米Al ₂ O ₃颗粒掺入PMB 显示出改善PMB 高温性能的良好潜力。